 
 
 
 
 
 
 
 
Cigarette and tobacco smoke residue may persist on surfaces for extended periods of time, ranging from months to even years. It is important to pinpoint a testing location where indoor smoking is common or suspected, or where dust tends to accumulate.
            Consider testing the following common household surfaces for the most accurat results when assessing for cigarette or tobacco smoke residue.
        
        
         
                
                    Walls or ceilings
                
             
                
                    Ceiling fans
                
             
                
                    Door frames and shelving
                
             
                
                    Window sills and frames
                
             
                
                    Ceiling light fixtures
                
             
                
                    Picture frames
                
             
                
                    Non-fabric furniture
                
             
                
                    Air condition vents
                
             
                   
                   
     
     
     
     
     
     
     
    